271 …        let pat1 = members.iter().map(|x| format!("{x}: ref {x}1")).collect::<Vec<_>>().join(", ");  in gen_instruction_data_impl()
272 …        let pat2 = members.iter().map(|x| format!("{x}: ref {x}2")).collect::<Vec<_>>().join(", ");  in gen_instruction_data_impl()
347                     let members = members.join(", ");  in gen_instruction_data_impl()
423                     let members = members.join(", ");  in gen_instruction_data_impl()
503                     let members = members.join(", ");  in gen_instruction_data_impl()
517                                     .join(", ");  in gen_instruction_data_impl()
830         .join(", ");  in iterable_to_string()
947                 .join(", ")));  in gen_type_constraints()
1009         fmtln!(fmt, "args: [{}],", args.join(", "));  in gen_member_inits()
1021             fmtln!(fmt, "blocks: [{}],", blocks.join(", "));  in gen_member_inits()
1071         args.join(", ")  in gen_format_constructor()
1182         _ => format!("({})", vec!["Value"; inst.value_results.len()].join(", ")),  in gen_inst_builder()
1186         format!("<{}>", tmpl_types.join(", "))  in gen_inst_builder()
1195         args.join(", "),  in gen_inst_builder()
1287         let fcall = format!("self.{}({})", format.name, args.join(", "));  in gen_inst_builder()
1316                     .join(", ")  in gen_inst_builder()